Beam-clamp



G.H.BRUNS.

BEAM CLAMP. APPLICATION FILED SEPT-5| 1919.

Patented J an. 13, 1920..

lNVENTO K/ZK Jew "it?! ATTOREY UNITED $TATES PATENT OFFICE. f

st nes. sesame N... Y.

EAM- een?- Application filed September 5, 1919. Serial No. 321,940.

12) all whom it may concern Be it known that I, GEORGE H. BRUNS, a citizen of the United States, and resident of the city of New York, in the county of Kings and State of New York, have invented a certain new and useful B.eam-Glamp, of which the following is a specification.

This invention relates to beam clamps of the class that is utilized in steel construction for therewith securing such objects as doorbucks, elevator fronts, saddles, or anything else to the fioorand ceiling beams of the structural work.

The principal object of my invention is to provide a simplified, inexpensive, conveniently and economically manufacturable, strong, durable, efiicient, and improved beam clamp for the above stated purpose, which willbe capable of convenient and rapid installation.

Another object is to vprovide a beam clamp of the above mentioned'class which when installed in place will be secured to its beam with complete firmness against dislocation in any direction, 71. 6., laterally or in the direction of the beam, as well as vertically and in directions transversely to the beam.

A further object is to provide a beam clamp for the above stated purpose, which may be secured to channels, Us or beams of similar shapes.

Other objects and advantages will'hereinafter appear.

In the accompanying drawings,

Figure 1 is a front elevation of the beam clam-p, showing it in secured operative state, with the beam shown in cross-sectional elevation.

Fig. 2 is a side elevation of the beamclamp shown in Fig. 1.

Fig. 3 shows a front elevation .of a beamclamp, which is a modification of the invention.

Fig. 4 is a side elevation of the clamp shown in Fig. 3.

The clamp 1 comprises a member 2, which serves to carry thefobjiect that is" to be secured to the structural" wor'ljz, and a 00- operating securing member "'3. 'Former ember onsists 9. a St Plate 4 which is "disposed approximately vertically and perpendicularly to the flange-part 5 of the I or 'T-b'eam 6, and with its upper "edge against the bottom of said flange, and is provided with an ear 7 that extends around the edge 8 of the flange 5 and bears against SQs Qifi iQn of le ter a en Patent d Jan. 13, 1929.

The car 10 of plate 9 is bent angularly at about the position shown, Fig. 2, while the ear 7 of plate 4 is similarly bent angularly but in a direction opposite to that of the car 10, whereby when the clamp is in its installed position shown, Fi" s. 1, 2, the lower edges 12, 13 of the ears Y, 10, respectively, bear against the top surface of the beam-flange 5 at two places which are at either side of the plates 4, 9 and are diagonally opposite to each other. Upon now passing a bolt 14 through registering holes 15 in the plates 4, 9 and threading a' nut 16 over said bolt and against the plate 9 and tightening it the plates 4, 9 are firmly secured to each other and-the ears7, 10 are caused to bear forcibly in a downward direction against the top of the flange 5 at diagonally opposite sides and at either side of theplates 4, 9, whereby the entire clamp becomes forcibly secured to the beam. against dislocation in any direction and with'the said plates disposed in vertical disposition. When the nut 16 is tightened the plates 4, 9' are brought into complete contact, the slight angularity between them being taken up bythe ears7, 10 and the plates giving way slightly under the pressure produced by the tightening of the bolt, .due to springiiiess of the steelplates. Should it be required to shift the clamp laterally during installation work, all that is required is loosening of the nut 16, to release thecontact of the plates 4, 9 and the pressure of the ear-edges 12, 13 against the flange 5, and then moving the clamp along {the flange to desired position upon the beam.

It will be evident that installing the clamp into operative state on the "beam requires merely the slipping of 'the' members 2, 3 transversely over the edges of the beamflange 5 and tightening of the bolt and nut 14, 16, while the reverse operation is all that is required for the complete removal of the clamp. Series of several holes 15 are preferably provided in the cooperating plates 4, 5, by which means the clamp may be adjusted to fit several sizes of beams, the distances between the holes in said plates being proportioned to fit various widths of beam-flanges. In the lower part of the plate 4 is preferably provided an elongated slot 17, through which bolts may be passed wherewith to secure any kind of framing or other object which it may be desired to secure to the structural work. It will be evident that the clamp can be very economically manufactured, for the reason that each of the members 2, 3 thereof can be made by simple stamping operations, which would cut the blank out of steel plate, punch the holes, and bend the ears 7, 10.

According to the modification shown in Figs. 3, 1, the clamp is adapted for securing it to such beams as channels, Us or similar shapes wherein but one edge 18 is available on the beam-flange 19. In this clamp the plate-portions a, 9 of members 2, 3 have their respective ears 7 10 located on the same side and they both embrace the same edge 18 of the beam-flange 19. A bolt and nut 14, 16 serve to secure the flange-members 2, 3 together and thereby forcibly secure the clamp in operative position upon the beam 21, and a projection 22 extending from the plate 2 at rear of the beam-web 23 servin to maintain the clamp against any possibility of transverse dislocation, whereby the entire clamp is rigidly fastened to the beam against dislocation in any direction, with the plate 4: fixed in vertical alinement ready to receive whatever object it may be desired to secure thereto in the construction.

i the beam when the members are secured to each other.

2. A beam clamp of the class described comprising a pair of members, each of said members including a plate adapted to be disposed against and transversely to the beam, each of said plates having a portion thereof extending over the side of the beam opposite to the side against which the plate is located andthe portion being angular to the plate, and said portions being adapted to tend to swing in arcs and grip the beam downwardly at either side of said plates when the plates are secured together.

3. A beam clamp of the class described comprising a pair of members, each of said members including a plate adapted to be disposed against and transversely to the beam, each of said plates having a portion thereof extending over the side of the beam opposite to the side against which the plate is located and the portion being angular to the plate, said portions embracing the opposite edges of the beam, and said portions being adapted to tend to swing in arcs and grip the beam downwardly at either side of said plates and at diagonally opposite places when the plates are secured to each other.

4;. A beam clamp of the class described comprising a pair of members, each of said members including a plate adapted to be disposed against and transversely to the beam, each of said plates having a portion thereof extending over the side of the beam opposite to the side against which the plate is located and the portion being angular to the plate, said portions being adapted to tend to swing in arcs and grip the beam downwardly at either side of said plates when the plates are secured together, said portions embracing the same edge of the beam, and one of said members having means opposite its angular portion to' prevent dislocation of the plates in the direction of the plane in which they lie.

A beam clamp of the class described comprising a pair of members, each of said members including a plate which is adapted to be disposed transversely to the beam, and said members having portions thereof so adapted that they will grip the beam downwardly at places laterally away from said plates when the plates are secured to each other.

6. A beam clamp of the class described comprising a pair of members, each of said members including a plate which is adapted to be disposed transversely to the beam, and said members having means whereby they will be firmly secured to the beam at points thereon which lie in a line rightangular to the plane of said plates when the plates are secured to each other.

Signed at the city of New York, in the county of New York and State of .New York, this 4th day of September, A. D. 1919 GEORGE H; BRUNS. 

